Thanks to the control knob, in the ergonomic position, we can control the flash power and change other parameters. This transmitter has been equipped with the camera's automatic focusing system, which greatly facilitates work both in the studio and outdoors. Godox XPro is fully compatible with the automatic TTL flash metering of dedicated cameras and guarantees full control of the flash power in both manual (M) and stroboscopic (Multi) modes. The user in both cases can use exposure compensation or manually set the flash power. In addition, super high-speed sync (HSS) and first and second curtain flash modes are available. This transmitter is very practical to use. It allows you to simultaneously control up to sixteen groups of lights, change the power and zoom of the flash or control the pilot light. Both the knob and the buttons allow quick access to the settings of a specific group, which greatly facilitates work on the photographic set. Godox XPro has been equipped with a USB-C connector for firmware updates. This transmitter is powered by two AA batteries. Package contents: Godox XPro transmitter base original product box. Seller's warranty: 2 years.